Roofing



C. E. RAHR ET AL ROOFING Filed Oct. 20, 1923 A :1 haizifirn' a mfirzm f? iezzidflwnagy Pate ted Apr. 17,1928.

UNITED STATES.

E. BARB, OF BBOOKLINE,MASSACHUSETTS,.AND F IBEIDERI CK C. OVERBUBY,

OF HILLSDALE, NEW JERSEY.

x noornm.

Application filed October 20, 1523. Serial No. 689,898.

This invention relates to roofing having the advantages of a metallic roofing and one composed of cheaper and lighter weight materials combined in a convenient manner. Roofing is now commonly made of sheet material comprising a fibrous base, such as rag felt saturated and coated with asphaltic -or bituminous material, with or without a sur face coating of weather-resistant material,

such for example as crushed slate, sand, etc. While the surface of crushed slate or sand helps to protect the asphalt from the weather exposure to which for long periods causes it. to oxidize and lose its strength,

such surfacing material becomes more or less removed by the abrading action of storms and the movement of snow and ice so that the asphalt becomes increasingly exposed to the weather.

2 According to the present invention the portions of the asphalt roofin exposed to the weather are covered wit thin sheet as the so called asphalt roofing is that the sheet material is comparatively thin and presents a fiat uninteresting appearance when laid on the roof. The copper coating appears'to increase this thickness without, however, 4 necessarily rendering the material so'inflexible as to be diflicult to lay, it being of substantially constant thickness throughout, but which yet does materially strengthen and stifien the roofing units. I

For a more complete understanding of this invention, reference may be had to the accompanying drawings in which Figurel shows in perspective aport-ion of a roof comprising strip shingles having their. portions exposed to the weather'covered by thin sheet metal. I

Figure 2 is a cross section on line 22 of Fi ure 1.

igure 3 is a fragmentary plan of a portion of the roof so laid illustrating a slight modification. a a

Figure 4. represents a perspective view of an individual shingle havin its portion exposed to the weather covere with sheet copper and Figure 5 ure 4.

Referring first to the form shown in Figures 1, 2 and 3, at 1 is indicated a strip shingle of usual form having alon its lower edge cutouts 2 forming spaced s ingle-simulating tabs 3, the usual practice being to include four such tabs in each strip unit. ,Overlying the tabs 3 and extending slightly above t e vupper end of the cutouts 2 is a strip of thin sheet metal, as copper, 4. This strip may be bent around one end of the shingle strip as shown at 5 and it may also be bent around the lower end of the strip as at 6. Where the metal strip brid esthe cutouts it is preferable to depress it t erein, as shown at 7, forming channels which give the appearance of spaces between the tabs without, however, actually showing cutout portions.

is a section on line 5-5 of F ig- This is done for the reason that when the courses of strips are laid in overlapping relation, as shown in this figure, the portions 7 of the metal bridge over the uncoated portions of the. shingles beneath extendin above the upper edge of the metallic strip. n case the material were cut through at the cut outs and turned back over the rear faces of the tabs, slots would be left through which would appear the asphalt surface of the strip beneath, unless these portions were covered by metal extensions or separate pieces as indicated forexample by dotted lines at 8. The necessity of any such exten sion or separate strip is thus eliminated by bridging the cutouts with the metal by depression of which the effect of the cutouts is produced.

In order that there shall be no s aces through which the asphalt of the under ying course may be visible at the ends of the strips, it is preferable to extend the copper strip sufiicienlly beyond one end of the strip shingle to underlieuind bridge the spacebetween adjacent tabs of adjacent strips of each course, this being indicatedat 10 in- Figures 1 and 2. y

In place of running the metal above the ends of the cutouts it may be somewhat easier to prolong the cutouts somewhat above the lower edge of the next succeeding course of tabs and. terminating the metal adjacent these upper ends. This is disclosed at 12 in Figure 3 and causes the depressions 7 and the wrapping of the metal over one end edge of the shingle to be accomplished more easily.

Instead of employing strip shingles, it is quite evident that individual shingles, as shown in Figures 4: and 5, or any other roofing units of similar material might be so coated with metal laminations. As there shown the asphalt shingle 15 comprising a fibrous base saturated and coated with asphalt has its lower portion exposed to the weather coated on its outer face by the thin sheet copper lamination 16 which may be folded around the sides and lower edges of the shingle and against the rear face thereof as shown at 17 in Figure 5. By applying this metal when the asphalt is warm and tacky it adheres very strongly thereto.

In both examples, however, it will be noted that the base on which the metal is placed comprises fibrous sheet material saturated and surfaced with a non-metallic waterproofing compound as as halt, over which is a laminatlon of thin s eet copper adhering directly thereto.

Having thus described certain embodiments of this invention it should be evident to those skilled in the art that many changes and modifications might be made therein without departing from its" spirit or scope as defined by the appended-claims.

We claim:

1. A roofing element comprising a fibrous sheet saturated and coated with asphaltic material and provided with cut-outs at intervals along its lower edge extending u beyond the portion of the element wh ch is exposed to the weather, and a thin metallic sheet secured to the fibrous sheet. and overlying the portion of the element exposed to per ends of the cut-outs, the said metallic sheet being unbroken at the cut-outs but depressed into and bridging them.

2. A roofing element comprising a foundation member adapted to. be laid with others in overlapping courses with a portion of the member extending along one edge normally exposed when so laid, said member having at least one notch extending inwardly from the edge of the portion adapted to be exposed to divide said portion into a plurality of spaced tabs, and a thin metallic coating covering that partof the member normally exposed, said coating having depresthe weather but not extending up to the up- V sions formed along the edge overlying the notched edge of the foundation member,

each depression having a flat bottom wall I extending across the notch and lymg sub stantially in the plane of the under face of the foundation member.

3. A roofing element adapted to be laid with others in overlapping courses in which a portion of the element is normally exposed, comprising a saturated fibrous sheet of generally rectangular shape having spaced notches extending inwardly from the longitudinal edge which is normally exposed, a

coating of asphaltic material covering the entire upper surface of the fibrous sheet, and a thin layer of metal extending alon the normally exposed longitudinal edge 0 the sheet, said layer of metal having depressions which enter the notches, said depressions having flat bottom walls which extend across the notches and lie substantially in the plane of the under face of the fibrous sheet.-

onns'rnn E. RAHR. FREDERICK o. OVERBURY. 

